Pocket Geometry - Pocket Geometry is a geometry reference app for Android smartphones and tablets. The application includes formulas for calculating the perimeter, area, surface and volume of various geometric shapes.

In addition, Pocket Geometry doubles as a calculator, allowing you to compute the aforementioned values. You can choose how many decimals you want the result to include and specify the number of Pi digits you want to work with.

The app supports 2D shapes such as square, rectangle, circle, triangle, trapezoid and parallelogram; as well as 3D shapes like cone, pyramid, sphere, cube, cylinder and rectangular prism.